Electromagnetic wave radiation pollution for the first time was included in the national labor protection regulations, electromagnetic wave radiation on the human body what is the harm? How to prevent? The newspaper asked experts to explain in detail
□ China Consumers Association issued a daily life must be protected against electromagnetic radiation consumer alert
□ a variety of different frequencies of electromagnetic waves filled space, colorless, tasteless, invisible, can penetrate any material, including the human body, causing pollution to the human body
□ the elderly, children, pregnant women belong to the sensitive group of electromagnetic radiation
This is the first time in the country's labor protection regulations, and how to prevent the pollution of electromagnetic wave radiation.
News background
Recently, the China Consumers Association issued a circular No. 9 of 2001, the content of daily life must be protected against electromagnetic radiation consumer warning. This warning caused great reaction among consumers, and many of them called the Indoor Environment Monitoring Center of China Interior Decoration Association for consultation. Mr. Zhan, who lives in Fangzhuang, Beijing, told the center that a few years ago, the post office built an 800-megawatt microwave transmitter station in his house, which is just one wall away from his house. Due to the long term living in the environment of microwave radiation, Mr. Zhan and his lover suffered from serious headache, tinnitus and other symptoms, which disappeared as long as he left the house for a few days. Mr. Zhan is in contact with the center these days to discuss how to solve the problem of microwave radiation pollution at home. It is understood that a few years ago, a real estate developer in Wuhan, in a radar transmitter station opposite the proximity of an apartment building, the residents are afraid of electromagnetic radiation pollution, so far no one dares to buy to move in. It is reported that now China City Interior Decoration Association City Environmental Monitoring Center, is in different areas of Beijing City electromagnetic radiation status of the test.
What is electromagnetic radiation pollution? What are the hazards of electromagnetic radiation pollution on the human body? What are the national control standards for electromagnetic radiation? How do we prevent and reduce indoor electromagnetic radiation pollution caused by physical harm? This reporter interviewed the China Interior Decoration Association Indoor Environment Monitoring Center Director Song Guangsheng.
Knowledge Links
Song director of the introduction: electromagnetic radiation pollution, also known as electronic fog pollution, high-voltage lines, substations, radio stations, television stations, radar stations, electromagnetic wave towers and electronic instruments, medical equipment, office automation equipment and microwave ovens, radios, televisions and cell phones and other household appliances work, will produce a variety of different frequencies of electromagnetic waves, which are filled with space, the electromagnetic waves. Colorless, tasteless and invisible, they can penetrate any substance including the human body and cause pollution to the human body. Long-term exposure to the human body in excess of the national regulations of the safety of the radiation dose, the body cells will be killed or killed by a large area, resulting in lesions.
Domestic and foreign research on the harm of electromagnetic radiation on the human body has been carried out for many years, most scholars believe that electromagnetic radiation on the human body has the potential harm. Director Song said, in recent years, domestic and foreign on the harm of electromagnetic radiation related reports are many, experts summarized six aspects:
First, causing childhood leukemia. Long-term exposure to high electromagnetic radiation in the environment, will make the blood, lymph fluid and cell protoplasm changes;
Second, induced cancer and accelerate the proliferation of cancer cells in the human body. Electromagnetic radiation pollution will affect the human circulatory system, immunity, reproduction and metabolic functions, serious cancer will be induced, and will accelerate the proliferation of human cancer cells;
Third, affect the human reproductive system. Male sperm quality is reduced, pregnant women have spontaneous abortions and fetal malformations;
Fourth, leading to children's intellectual disability;
Fifth, affecting people's cardiovascular system. Manifested as palpitations, insomnia, some women's menstrual disorders, bradycardia, decreased cardiac blood flow, sinus arrhythmia, leukopenia, decreased immune function;
Sixth, the people's visual system has an adverse effect. Eyes belong to the body's sensitive organs to electromagnetic radiation, excessive electromagnetic radiation can cause vision loss, causing cataracts.
Song director of special emphasis: high doses of electromagnetic radiation will also affect and destroy the body's original bioelectric current and bio-magnetic field, so that the original electromagnetic field in the body abnormal. The elderly, children, pregnant women belong to the sensitive people of electromagnetic radiation.
Expert comment
Modern life has made us inseparable from the electrical products, then what way to make us both enjoy high-tech to bring us the favor, but also effective prevention of electromagnetic radiation pollution?
Director Song said that in recent years, the state of the control of electromagnetic radiation has developed a number of corresponding standards. For example, on March 11, 1988, the State Environmental Protection Bureau issued the "electromagnetic radiation protection regulations", which provides for the protection of electromagnetic radiation in the electromagnetic radiation limit range of 100khz-300ghz; in 1989, "microwave radiation health standards in the workplace" was formally approved as a national standard, the limit value of 0.4 milliwatts / square centimeter; approved in 1989, "the Environmental Electromagnetic Wave Health Standards" puts forward the electromagnetic wave radiation contamination of the second level of permissible limits: the first level of standards for a safe environment, in this environment for long-term residence, work and life of all the people (including infants, pregnant women and the elderly, the sick and the disabled) of the health of the health will not be affected in any way; the second level of standards for intermediate environments, long-term residents living in the region of the population, may produce potentially adverse reactions to be limited; more than Secondary standards above the environment, will bring harmful effects to the human body, the surrounding environment can only be used as green space and planting crops.
The problem is that residents in the purchase of housing can not understand the status of electromagnetic radiation pollution within the residence, therefore, the experts reminded real estate developers, construction of the district before to determine the location of the electromagnetic radiation environment index.
So, how should we prevent and reduce electromagnetic radiation pollution in the living room?
Director Song reminded the following points:
First, pay attention to the arrangement of indoor office and household appliances, do not focus on placement. In particular, some easy to generate electromagnetic waves of household appliances, such as radio, television, computer, refrigerator, etc., is not easy to focus on the bedroom;
Second, pay attention to the use of office and household appliances time, a variety of electrical appliances, office equipment, cell phones try to avoid prolonged operation, while avoiding a variety of office and household appliances at the same time to enable. Cell phone connected to the moment of the release of electromagnetic radiation is the largest, the use of head and cell phone antenna distance away, it is best to use the separation of headphones and microphone to answer. Computer is best to install lead glass made of computer radiation screen;
Third, to maintain the distance between the human body and office and household appliances, color TV distance should be 4-5 meters, fluorescent lamps distance should be 2-3 meters, microwave ovens open and then leave at least 1 meter away;
Fourth, live and work in the high-voltage lines, Substation, radio, television, radar stations, electromagnetic wave transmission towers near the personnel, often use electronic instruments, medical equipment, office automation equipment, living in a modern electrical automation environment of the staff, patients wearing pacemakers, living in the above environment, pregnant women, children, the elderly and the sick, and other five kinds of people, we must pay special attention to the environmental index of electromagnetic radiation pollution, if the Indoor environment electromagnetic wave pollution is relatively high, must take appropriate measures, or ask the relevant departments to help solve the problem.
In addition, Director Song reminded consumers to buy household appliances and office automation equipment, must buy qualified products produced by formal enterprises, because qualified products must be within the electromagnetic radiation value of the national regulations of the safety range.
Science click
Electromagnetic wave pollution and its protection
The wide application of electronic technology, the increasing number of household appliances, so that people's worries about electromagnetic wave pollution generated by electrical appliances is increasing.
May 7, 1999, China's Environmental Protection Administration informed the press: electromagnetic radiation environmental pollution does exist, the country is drawing up electromagnetic radiation environmental pollution sources for environmental impact assessment.
China's Environmental Protection Administration decided to establish a file and database of key sources of pollution, to set up a sound system of approvals for construction projects related to electromagnetic radiation, to keep sources of electromagnetic pollution away from densely populated areas, and to incorporate the management of electromagnetic pollution into the daily track of environmental protection work.
The general public only noticed the work of large and medium-sized transmitting equipment produced by electromagnetic radiation on the person's harm, and in fact, modern office buildings, new office equipment, household appliances in the room produced by electromagnetic radiation is more prominent. Experts call for: long hours sitting in front of the computer screen work, to take effective protective measures, the operator to wear radiation coats, vests, aprons and other series of supplies, video display terminals must be retrofitted with fluorescent screen protection network, you can also drink anti-radiation tea.
In fact, the electromagnetic wave is also like the atmosphere and water resources, only when people plan, use the wrong time will cause harm. A certain amount of radiation is beneficial to the human body, medical baking electricity, physical therapy and other methods are the use of the right amount of electromagnetic waves to achieve the purpose of healing fitness. Electromagnetic radiation, we should correctly recognize, scientific protection. (By Zhao Xue)
Science and Technology Daily 2001.08.29